Rope Bridges Puzzle

29.07.2015 |

Episode #3 of the course “Challenging logic puzzles”

Four people need to cross a rope bridge, which is strong enough to support only two people at a time. First person takes 1 minute to cross the bridge, Second person takes 2 minutes, Third person takes 5 minutes, and the Fourth person takes 10 minutes to cross the bridge. They have a torch which has battery left only for 17 minutes and the bridge can not be crossed without light.

How will they manage to cross the bridge?

View the solution


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